<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title></title>
</head>
<body>
    <div id="app">
        <button @click="fn">显示</button>
        <h1 v-show="isShow">无敌至尊霸气家🐏大人</h1>
    </div>
    <script src="vue.js"></script>
    <script>
        const app = new Vue({
            el:'#app',
            data:{
                isShow:true
            },
            methods:{
                fn(){
                    console.log('执行了fn方法')
                    this.isShow = !this.isShow
                }
            }
        })
    </script>
</body>
</html>